As you'll appreciate, I'm keen to look after my briars, especially as one is a Growley. At the moment after every smoke I'm running a pipe cleaner through and then using the same cleaner to 'de-dust' the inside of the bowl. When the cake builds up I'm removing the excess carefully with a pipe tool. But what about the exterior? The grain on the Growley is simply stunning and I want it to remain so. Would the pipe benefit from an occasional light polish with beeswax (or similar) or should I leave well alone? Grateful of your thoughts...